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Proceedings Paper

A new five degree-of-freedom measurement method and system
Author(s): Fengling You; Qibo Feng; Bin Zhang
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Paper Abstract

In this paper, a newly developed system for simultaneously measuring five-degree-of-freedom errors of machine tools is introduced. A single-mode fiber-coupled laser module is used to eliminate the beam drift of the laser source. Only a cube corner retro-reflector and a beam splitter are adopted in the moving target in order to sense the straightness errors and angle errors (pitch and yaw) respectively and simultaneously. A special prism (including a beam-splitter facet and an all-reflecting facet) was adopted to measure the roll. A simple common-path compensation method for laser beam drift is put forward, and a 2D position-sensitive detector and a lens are used to monitor angular drift of the laser beam. It is convenient to measure the parameters of the numerical control machine in workshop due to non-cable connecting between moving target and measurement head. The error analysis and theory analysis of roll which provide potent theoretical guidance in the future are given in detail.

Paper Details

Date Published: 28 January 2009
PDF: 11 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 715634 (28 January 2009); doi: 10.1117/12.811951
Show Author Affiliations
Fengling You, Beijing Jiaotong Univ. (China)
Qibo Feng, Beijing Jiaotong Univ. (China)
Bin Zhang, Beijing Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)

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